Originally Posted by jgrushing
I'm sorry to beat a dead horse but there is no flex in the mounting system on my Klippermate. Granted, mine's 20 years old and they might have changed it a bit. But the mounting posts on mine are half inch X 2 inch solid steel. You could pull 500 pounds of pressure on these and they're going nowhere. The most common racquets I string are Volkl V1 Classics and Dunlop Aerogels. Also, lots of Prince with O holes. Don't have a problem.
I still contend that poor mounting is the culprit in most of the cases. String tension differential could play a role also. I almost never string more than 2 pounds difference.
It is very possible that the Klippermate was better made 20 years ago. There are so many reports of this issue, can't all be mounting errors. If you check and do a search (as Bud stated.. asked and explored over and over) there are many, many threads. Back to what I said...way back many times. Bad machines and bad mounting...